Lost in the Fifth Dimension

From Author Wars - https://authorwars.com/books/lost-in-the-fifth-dimension-2468694.html

Overview:

Title: Lost in the Fifth Dimension
Author: John Macklin
Year: 1969
Type: Short Fiction

Editions/Publications:

Unknown. Orbits of the Unknown (Unknown, John Macklin, Ace Books, $0.75, 223 pages, Paperback, Collection)